Building Code are the fundamentals and ready made guideline for the proper design of a building. Here in this course we are going to cover the NBC 105 Latest revision of 2020 and compare it with relevant IS Code.

SEISMIC DESIGN OF RC BUILDINGS USING NBC-105: 2020

LECTURE-1: Calculation of Design Forces and Displacement

1. Methodology of seismic design in modern codes – Its evolution from seismic coefficient method to the performance-based design.
2. Seismic hazard quantification – DSHA and PSHA, Levels of seismic hazard- MCE, DBE, and SE and their interrelation.
3. Concept of response spectrum, Spectral shape and response spectrum; Construction of design response spectrum using NBC-105 – Zone factors, Site Classification and its effect; Comparison with IS 1893.
4. Effect of inelastic behaviour of structures and hysteretic energy dissipation – Role of ductility, Equal displacement and equal energy principles, relationship between ductility, overstrength, and response reduction factor, Response reduction factors for different types of structural system, Comparison with IS 1893.
5. Concept of natural modes of vibration, fundamental period of vibration, estimation of fundamental period of vibration using empirical formulae in NBC-105, comparison with IS 1893.
6. Calculation and scaling of design base shear using NBC-105 and a comparison with IS 1893.
7. Methods of Analysis – Equivalent Static Method, LinearDynamic Analysis using Response Spectrum, Modal response History Analysis
8. Effective stiffness of RC members, and calculation of storey drifts, Limits on storey drifts as per NBC-105, Comparison with IS 1893.

LECTURE-2: Ductile Detailing and capacity Design

1. Selection for materials for ductility – Effect of grade of concrete and steel.
2. Effect of confinement of behaviour of concrete – enhancement in strength and ductility, failure of confined concrete.
3. Confinement of concrete in RC members – Arrangement of hoops and ties, Longitudinal spacing of stirrups, provisions of NBC-105.
4. Concept of capacity design – How to avoid brittle failure modes? Capacity shear in beams and columns, Strong-column-weak-beam design.
5. Ductile detailing of shear walls – Difference between a column and a shear wall, Boundary elements in a shear wall.
6. Shear walls with openings – Detailing of piers and spandrel, Coupled shear walls, Design and detailing of coupling beams, different types of coupling beams, redistribution of coupling beam capacity.
7. Capacity design of shear walls –  Design moment and shear force envelopes.
8. Reinforcement detailing at construction joints in shear walls